Company lists · Data refreshed September 2026

Top 24 Energy efficiency companies based in New York, United States

Name: Energy efficiency companies based in New York, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 15, 2026 93 companies tracked

RevenueBase identified 93 energy efficiency companies headquartered in New York, United States as of September 2026 and tracks 1,428 professional contacts across them, including 847 with verified work emails. New York is the largest hub.

This list covers energy efficiency companies headquartered in New York, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 15, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 15, 2026 86% judged on-target in blind review

93Companies

1,428Contacts tracked

847Verified emails

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The 24 largest energy efficiency companies based in New York, United States

Ranked by team size

Top 24 of 93 energy efficiency companies based in New York, United States, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to energy efficiency companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Bright Power	Strong evidence	New York, NY, United StatesHQ checked Sep 15, 2026	51-200	205 contacts →
	Strong evidence “Bright Power is a leading provider of energy efficiency and decarbonization solutions for the real estate industry.” Source: RevenueBase Database · checked Sep 15, 2026
2	Environ Energy	Partial evidence	New York, NY, United StatesHQ checked Sep 15, 2026	51-200	98 contacts →
	Partial evidence “Environ Energy is a leader in accelerating global sustainable energy transformation for more than 30 years.” Source: RevenueBase Database · checked Sep 15, 2026
3	En-Power Group	Indirect evidence	New York, NY, United StatesHQ checked Sep 15, 2026	51-200	75 contacts →
	Indirect evidence “We help building owners cut carbon, reduce costs, and stay compliant.” Source: RevenueBase Database · checked Sep 15, 2026
4	Codegreen	Strong evidence	New York, NY, United StatesHQ checked Sep 15, 2026	51-200	72 contacts →
	Strong evidence “CodeGreen is a leading national sustainability and energy efficiency consulting firm.” Source: RevenueBase Database · checked Sep 15, 2026
5	Onyx Renewables	Partial evidence	New York, NY, United StatesHQ checked Sep 15, 2026	51-200	67 contacts →
	Partial evidence “Onyx Renewables is a leading provider of predictable, affordable clean energy solutions nationwide.” Source: RevenueBase Database · checked Sep 15, 2026
6	Sealed	Partial evidence	New York, NY, United StatesHQ checked Sep 15, 2026	51-200	54 contacts →
	Partial evidence “Sealed is a climate tech company on a mission to stop home energy waste by enabling contractors to install more home weatherization and electrification projects and grow their…” Source: RevenueBase Database · checked Sep 15, 2026
7	INF Associates	Partial evidence	New York, NY, United StatesHQ checked Sep 15, 2026	11-50	51 contacts →
	Partial evidence “INF Associates is an energy solutions integrator providing turnkey solutions in decarbonization of transportation and buildings.” Source: RevenueBase Database · checked Sep 15, 2026
8	Energy Infrastructure Partners LLC	Partial evidence	New York, NY, United StatesHQ checked Sep 15, 2026	11-50	49 contacts →
	Partial evidence “Founded in 2011, Energy Infrastructure Partners (EIP) began with a clear premise: utilities, governments, and large energy users need a partner who is as committed to technical…” Source: RevenueBase Database · checked Sep 15, 2026
9	Highmark Building Efficiency	Indirect evidence	New York, NY, United StatesHQ checked Sep 15, 2026	11-50	43 contacts →
	Indirect evidence “HIGHMARK’s mission is to support building sustainability, electrification, decarbonization and cost savings.” Source: RevenueBase Database · checked Sep 15, 2026
10	F & D Partners, INC	Partial evidence	New York, United StatesHQ checked Sep 15, 2026	51-200	30 contacts →
	Partial evidence “F&D Partners is a leading energy consultant in many deregulated US states, Canada, Mexico, the UK and Ireland.” Source: RevenueBase Database · checked Sep 15, 2026
11	Carleton Energy Consulting	Partial evidence	New York, NY, United StatesHQ checked Sep 15, 2026	11-50	29 contacts →
	Partial evidence “Carleton Energy specializes in Local Law 87 & Local Law 84 benchmarking compliance.” Source: RevenueBase Database · checked Sep 15, 2026
12	Utilivisor	Partial evidence	New York, NY, United StatesHQ checked Sep 15, 2026	11-50	23 contacts →
	Partial evidence “Building owners and Facility directors don’t have time to waste on partial strategies that don’t create energy savings.” Source: RevenueBase Database · checked Sep 15, 2026
13	Energy Economic Development Corporation	Strong evidence	New York, NY, United StatesHQ checked Sep 15, 2026	1-10	23 contacts →
	Strong evidence “The Energy Economic Development Corporation delivers cost-saving energy efficiency retrofits that place minimal burden on building owners and managers.” Source: RevenueBase Database · checked Sep 15, 2026
14	Empowered Buildings	Strong evidence	New York, NY, United StatesHQ checked Sep 15, 2026	11-50	23 contacts →
	Strong evidence “Empowered Buildings empowers owners and managers with advanced energy efficiency technologies to reduce emissions, lower costs, ensure compliance, and optimize overall building…” Source: RevenueBase Database · checked Sep 15, 2026
15	Firstservice Energy	Partial evidence	New York, NY, United StatesHQ checked Sep 15, 2026	11-50	21 contacts →
	Partial evidence “FirstService Energy is the energy management and advisory affiliate of FirstService Residential the largest manager of residential communities in North America.” Source: RevenueBase Database · checked Sep 15, 2026
16	Orange Energizing Solutions	Strong evidence	New York, NY, United StatesHQ checked Sep 15, 2026	11-50	19 contacts →
	Strong evidence “Orange Energizing Solutions (OES) is a leading provider and installer of cost effective energy efficient solutions for all commercial refrigeration businesses.” Source: RevenueBase Database · checked Sep 15, 2026
17	Smith Engineering, Pllc	Indirect evidence	New York, NY, United StatesHQ checked Sep 15, 2026	11-50	16 contacts →
	Indirect evidence “Smith Engineering’s goal is to challenge the status quo.” Source: RevenueBase Database · checked Sep 15, 2026
18	Artis Energy Intelligence	Partial evidence	New York, NY, United StatesHQ checked Sep 15, 2026	51-200	15 contacts →
	Partial evidence “Listen To Your Building Artis Energy™, through its subsidiaries Artis Energy Intelligence and Artis Energy Solutions, brings a unique combination of analytics, technology and…” Source: RevenueBase Database · checked Sep 15, 2026
19	Solo Energy & Electrical	Strong evidence	New York, United StatesHQ checked Sep 15, 2026	11-50	15 contacts →
	Strong evidence “SOLO is a sustainable energy service company specializing in energy efficiency, electrification, and renewable solutions.” Source: RevenueBase Database · checked Sep 15, 2026
20	Sunlight Energy Group	Partial evidence	New York, NY, United StatesHQ checked Sep 15, 2026	1-10	13 contacts →
	Partial evidence “Sunlight Energy Group works with companies to lower costs by developing powerful energy management plans that reduce usage, secure the best rates, and leverage emerging…” Source: RevenueBase Database · checked Sep 15, 2026
21	Werpo Solutions	Partial evidence	New York, NY, United StatesHQ checked Sep 15, 2026	11-50	12 contacts →
	Partial evidence “Werpo is a full-service design-and-build energy conservation firm providing cost-effective solutions for our clients.” Source: RevenueBase Database · checked Sep 15, 2026
22	Unity Electric	Partial evidence	New York, NY, United StatesHQ checked Sep 15, 2026	1,001-5,000	11 contacts →
	Partial evidence “Unity International Group, an Equans company, helps industry leaders with electrical and energy services projects.” Source: RevenueBase Database · checked Sep 15, 2026
23	IAG Energy	Strong evidence	New York, NY, United StatesHQ checked Sep 15, 2026	11-50	10 contacts →
	Strong evidence “At iAG Energy we believe in making energy efficiency simple.” Source: RevenueBase Database · checked Sep 15, 2026
24	Greenwich Energy Solutions	Strong evidence	New York, NY, United StatesHQ checked Sep 15, 2026	1-10	10 contacts →
	Strong evidence “Greenwich Energy Solutions delivers greening and energy efficiency services for commercial and multifamily buildings anywhere in the United States.” Source: RevenueBase Database · checked Sep 15, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: energy efficiency companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names energy efficiency companies.
Partial evidence: Its own public description names part of energy efficiency companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy efficiency companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 24 of 93 energy efficiency companies based in New York, United States

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Energy efficiency companies based in New York, United States at a glance

As of Sep 15, 2026

59.3%Verified-email coverage

15.4Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · New York

Sep 15, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for New York, so it is reported there. Company counts and contact totals on this page are exact for New York, over 93 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among energy efficiency companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in New York, United States whose own description of what they do matches “energy efficiency companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names energy efficiency companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among energy efficiency companies, and records with no verified work email. Companies headquartered outside New York are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 847 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 15, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Energy efficiency companies by metro in the United States

Energy efficiency companies in New York93
Energy efficiency companies in Houston71
Energy efficiency companies in Atlanta40
Energy efficiency companies in Dallas38
Energy efficiency companies in Denver31
Energy efficiency companies in Chicago30
Energy efficiency companies in Austin29

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names energy efficiency companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many energy efficiency companies are there based in New York, United States?

RevenueBase identified 93 energy efficiency companies headquartered in New York, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Bright Power, headquartered in New York, tops this list with the largest team on record.

Which city has the most energy efficiency companies?

New York leads with 93 headquartered companies, followed by Houston (71) and Atlanta (40).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 847 verified decision-maker contacts tracked across these 93 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 15, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.